Teach Type::getPointerAddressSpace to look through pointer vectors

politely and document this feature.

This simple API extension then allows us to write all of the
Instructions' address space query methods much more simply. No
functionality change intended here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167223 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/VMCore/Type.cpp b/lib/VMCore/Type.cpp
index 1bbd2c6cf0..1656ab2cab 100644
--- a/lib/VMCore/Type.cpp
+++ b/lib/VMCore/Type.cpp
@@ -215,7 +215,7 @@ unsigned Type::getVectorNumElements() const {
 }
 
 unsigned Type::getPointerAddressSpace() const {
-  return cast<PointerType>(this)->getAddressSpace();
+  return cast<PointerType>(getScalarType())->getAddressSpace();
 }